Condensing apparatus



J. C. MORTON.

CONDENSING APPARATUS APPLICATION FILED APR. 4, 191a. RENEWED AUG. 23. I920.

Patented Sept. 28,1920.

J. C. MORTON.

} CONDENSING APPARATUS.

APPLICATION FILED APR. 4, 191a. RENEWED AUG. 23. x920.

l ,354, 1 22. Patented Sept. 28, 1920.

2 SHEETS-SHEET 2.

UNITED STATES I- JAMES COWAN MORTON, 0F AUCKLAND, NEW ZEALAND.

GOND'ENS-ING APPARATUS.

Application filed April 4, 1918, Serial No. 226,74

T 0 all whom it may concern:

Be it known that 1, JAMES CowAN Mon- TON, a subject of His Ma'esty the King of the United Kingdom of rreat Britain and Ireland, of the S. S. Rakomoa, Union Steamship Company Limited, of the city of Auckland in the Provincial District of Auckland and Dominion of New Zealand, have invented a new and useful Improved Condensing Apparatus, of which the following is a specification.

This invention relates to condensing apparatus, employed in the distillation of salt water, and provides an improved construction of coil, the use of which results in a considerable saving of labor and cost of up-keep.

According to this invention, the coil which is of helical or spiral formation consists of an outer and an inner tube, the latter passing through the former for its entire length and being circular in cross section while the outer tube is preferably oval in cross section.

The coil is fastened in position at its lower end only, the upper end being held loosely in a suitable support so as to provide for upward and downward and lateral movement of the coil within certain limits.

The lower end of the coil is connected to a special fitting mounted at the bottom of the container, so that steam passes into the inner tube only, the latter at its upper end having communication with the outer tube.

The outer tube when the coil is fitted in position connects at its lower end with passages entering a chamber in the special fit-. ting before mentioned, which chamber has a drain therefrom adapted to be put into communication with the condenser.

The invention will be more particularly described with reference to the accompanying drawings, in which,-

Figure 1 is a part full elevation and part sectional elevation of the improved coil,

Fig. 2 is a front view of the coil end attached to the lower end of the coil and used for connecting the coil to the special fitting in the evaporator,

Fig. 3 is a cross sectional view of one of the nipples of the special fitting,

Fig. 1 is a plan view of the special fitting, and

Fig. 5 a sectional view of the latter through A-B, Fig. 4.

Fig. 6 is a part sectional elevation showing Specification of Letters Patent.

Patented Sept. 28, 1920.

8. Renewed August 23, 1920. Serial No. 405,485.

the coils connected to the special fitting and arranged in a tank,- and Fig. 7 is a sectional view on the line CD of Fig. 6.

' The coil consists of two tubes, an inner tube 1 circular in cross section and an outer tube 2 preferably oval in cross section.

The upper end of the outer tube 2 terminates in a short vertical portion and is closed by a specially formed coil end 3 having shoulders 4 and 5 thereon.

The upper end of the inner tube 1 terminates a short distance below the upper end of the outer tube 2 and has openings 6 therethrough and is therefore in communication with outer tube at its upper end through the coil end 3.

The lower ends of the tubes 1 and 2 are fitted with a specially constructed coil end 2 through which is a passage 7 communicatlng only with the inner tube 1 and openings 8 communicating only with the outer tube 2. v

The special fitting 9 to which the coil is connected has any suitable number of externally screwed nipples 10 each of which has a passage 11 therethrough from a steam chamber 12, supplied with steam through an inlet 13. Each nipple 10 has also a passage opening 14: therethrough to correspond with the passage 8 through the coil end 2, said passage 14 leading from a drain chamber 15 in the fitting 9 and from which there is a drain passage 16 adapted to be con nected up to the condenser.

WVhen the nut 17 on the coil end 2* is screwed on to one of the nipples 10, the passage 7 through the lower coil end 2 is placed in communication with the passage 11 through the nipple and leading from the steam chamber 12 thereby enabling steam to pass into the inner tube 1. Also, the passage 8 in the coil end 2 is put in communication with the passage 14 in the nipple. Dowel pins 14L are provided in the nipples 10 to enter dowel pin sockets 8 in the coil ends 2*, and insure the passages 7 and 8 coming directly opposite the passages 11 and 1 1 respectively. Each nipple 10 is adaptedto take a coil and the latter are secured in position at the lower end only, they preferably being kept upright by means of suitable supports loosely fitted to their upper ends between the shoulders 1 and 5.

Referring to Figs. 6 and 7, the coils 1 and jected through fitting 19 into the porting the coil at its upper end,

2 are shownconnected to the'nipples of the fitting 9, this fitting being secured to the bottom plate of a tank 18'. The said bottom plate has a fitting 19 for connectlon with a steam inlet pipe. An outlet pipe 20 provides means for carrying off the pure Water. 7 o g Y The steam derived from sea water is inspace 13 whence it is distributed to the coils 1. From the upper ends of these coils, the steam passes into the outer tubes or coils 2, Where it condenses. From coils '2, the water passes by way of tubes 8 and 1 1, into whenceit flows, through opening 16 into the tank 18. The water may, lowed to rise in the tank so as tocool the outer tubes 2 and thus aid in the condensation.

21 indicates an arm of abracket for supthis con: nection allowing for expansion and contraction. 22 is an air vent. 7 7

By employing an inner and an outer tube in commun cation at the-upper ends and out 0t communication at thelr lower ends, the chances of owing'to the hottest steam being led to; the top of the coil, thereby converting'to steam any salt water coming in contact therewith.

space 15- if desired, be al-- priming are considerably reduced 1 Also owing to the coil having movement at its upper end it is permitted to expand and contract in any direction thereby preventing in crustations and incasings forming thereon,'the-oval shaped outer tube greatly facilitating such expansion and contraction.

I claim 1+ 1. A condensing apparatusv consisting of sets of coils,"in which each coilcomprises two tubes, an inner tube of round cross section and an outer tube of oval cross section, thefirst mentioned tube being disposed within'the last mentioned tube.

2. A condenser coil, having an outer tube and an inner tube running through said outer tube, a coil end secured to the upper end of the outer tube to provide communication between the two tubes at the upper end of the coil, and a coil 'end secured to the lower end of the coil and having inlet and outlet passages to provide communication between the two tubes at the lower end of the coil, substantially as described and illustrated. V

JAMES 'COWAN MORTON.

Witnesses V ERNnsT lVILFRED BoYon CAREY,

MARY CHRIsT'INA BRENNAN. 

